CN219125686U - Novel three-section liftable tablet chair - Google Patents

Abstract

The utility model discloses a novel three-section liftable tablet chair, which belongs to the field of tablet chairs and comprises a mounting rack, wherein the top of the mounting rack is fixedly connected with a plastic chair back, the bottom of the mounting rack is fixedly connected with a plastic base, two supporting feet are arranged below the plastic base, three sections of telescopic pipes are fixedly connected between the tops of the supporting feet and the bottoms of the plastic base, lifting rods are arranged in the three sections of telescopic pipes, and a connecting shaft is connected between the two lifting rods in a transmission manner.

Description

Novel three-section liftable tablet chair

Technical Field

The utility model relates to the field of chairs, in particular to a novel three-section liftable chair.

Background

The chair is a chair for students to sit in class and can be divided according to age, materials and functions. At present, students have different growth and development time, and have higher individual heads and shorter individual heads, so that the students need to lift the tablet chairs through corresponding lifting desk chairs so as to be suitable for students with different heights.

Based on the above, the present inventors found that: the prior liftable tablet chair is fixed by fastening bolts, and is lifted by tightening and lifting operations, so that the operation is inconvenient, time and labor are wasted, and meanwhile, the prior liftable tablet chair is mainly two sections of liftable, so that the lifting height range of the tablet chair is often smaller, the use of different students is inconvenient, the applicability of the tablet chair is greatly reduced, and accordingly, the tablet chair is researched and improved aiming at the prior structure, and the novel three-section liftable tablet chair is provided for achieving the purpose of more practical value.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a novel three-section liftable tablet chair, which can realize rapid lifting treatment of the tablet chair, and the lifting operation is simplified by using the coordination of a crank, a connecting shaft and a lifting rod, so that the convenience of students on lifting the tablet chair is greatly improved, and meanwhile, the three-section lifting of the tablet chair can be realized by using the coordination of the lifting rod and three-section telescopic pipe, and the lifting height range of the tablet chair and the applicability of students are greatly improved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a novel three sections liftable tablet chairs, includes the mounting bracket, the top fixedly connected with plastics back of the chair of mounting bracket, the bottom fixedly connected with plastics base of mounting bracket, the below of plastics base is provided with two supporting legs, fixedly connected with three sections flexible pipes between supporting leg top and the plastics base bottom, three sections flexible pipe are inside to be provided with the lifter, two transmission connection has the connecting axle between the lifter, one of them one side of lifter is provided with the crank.

Further, the supporting legs comprise supporting seats, and leveling feet are fixedly connected to two ends of each supporting seat.

Further, the three-section telescopic tube comprises a first elliptical tube fixed at the top of the supporting seat, the inner wall of the first elliptical tube is slidably connected with a second elliptical tube, the inner wall of the second elliptical tube is slidably connected with a third elliptical tube, and the bottom ends of the first elliptical tube and the second elliptical tube are respectively and fixedly connected with a first clamping sleeve and a second clamping sleeve.

Further, the lifter includes fixed mounting in the adjusting part of plastics base bottom, adjusting part's bottom is provided with interior lead screw, the periphery threaded connection of interior lead screw has first fastener, first fastener bottom fixedly connected with removes the sleeve pipe, it is provided with outer lead screw to remove the inside outer lead screw that is provided with of sleeve pipe, remove sleeve pipe through second fastener and outer lead screw periphery threaded connection.

Further, the adjusting component comprises a protection outer cover fixedly mounted at the top of the plastic base, a transverse conical gear and a vertical conical gear are arranged in the protection outer cover, and the transverse conical gear is meshed with the vertical conical gear and located above the vertical conical gear.

Further, two sides that horizontal bevel gear is close to each other are connected with the both ends transmission of connecting axle respectively, one of them horizontal bevel gear and crank one end block are connected, vertical bevel gear's bottom and interior lead screw top fixed connection.

Further, a reinforcing rod is fixedly connected between the two first elliptical pipes.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, through the arrangement of the crank, the connecting shaft and the lifting rod, the crank is rotated, the transverse conical gear is rotated, the vertical conical gear drives the inner screw rod to rotate and lift, meanwhile, the inner screw rod rotates and lifts, the movable sleeve can move upwards along with the inner screw rod in the lifting process, lifting of the tablet chair is achieved, lifting operation is simplified, and convenience of students on lifting of the tablet chair is greatly improved.

(2) According to the scheme, the lifting rod and the three telescopic pipes are matched for use, the outer screw rod is fixed on the supporting seat to serve as the initial height of the tablet chair, the inner screw rod can drive the movable sleeve and the plastic base to ascend for the first time under the action of the adjusting component, the inner screw rod can be clamped and fixed with the bottom end of the inner screw rod by utilizing the clamping groove at the bottom of the first clamping piece after rotating to a certain height, the movable sleeve can continue to rotate, the second ascent of the tablet chair is realized, the three-section ascent of the tablet chair is realized, and the lifting height range of the tablet chair and the use applicability of students are greatly improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the lower position structure of the plastic base of the present utility model;

FIG. 3 is a schematic view of a lifter structure according to the present utility model;

fig. 4 is a schematic view of a partially disassembled structure of a lifter according to the present utility model.

The reference numerals in the figures illustrate:

1. a mounting frame;

2. a plastic chair back;

3. a plastic base;

4. supporting feet; 41. a support base; 42. leveling the ground feet;

5. three sections of telescopic pipes; 51. a first oval tube; 52. a second oval tube; 53. a third oval tube; 54. a first ferrule; 55. a second ferrule;

6. a lifting rod; 61. an adjustment assembly; 611. a protective outer cover; 612. a transverse bevel gear; 613. a vertical bevel gear; 62. an inner screw rod; 63. a first clamping piece; 64. moving the sleeve; 65. an outer screw rod; 66. a second clamping piece;

7. a connecting shaft;

8. a crank;

9. and a reinforcing rod.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

please refer to fig. 1-4, a novel three section liftable tablet chair, including mounting bracket 1, the top fixedly connected with plastics back of the chair 2 of mounting bracket 1, the bottom fixedly connected with plastics base 3 of mounting bracket 1, the below of plastics base 3 is provided with two supporting legs 4, fixedly connected with three section flexible pipes 5 between supporting legs 4 tops and plastics base 3 bottom, three section flexible pipe 5 inside is provided with lifter 6, the transmission is connected with connecting axle 7 between two lifter 6, one side of one of them lifter 6 is provided with crank 8, when using, through lifter 6 and three section flexible pipe 5's setting, three sections of lift to this tablet chair can be realized, improve tablet chair lifting height's scope and student's suitability greatly, simultaneously through rotating crank 8 can realize that lifter 6 drives the lift of this tablet chair, make lifting operation simplify, improve its student to the convenience of tablet chair lift greatly.

Referring to fig. 1, the supporting leg 4 includes a supporting seat 41, two ends of the supporting seat 41 are fixedly connected with leveling feet 42, and when in use, stability of the chair in use can be improved through arrangement of the leveling feet 42, so that a better supporting effect is achieved.

Referring to fig. 1 and 2, the three-section telescopic tube 5 comprises a first elliptical tube 51 fixed at the top of the supporting seat 41, a second elliptical tube 52 is slidably connected to the inner wall of the first elliptical tube 51, a third elliptical tube 53 is slidably connected to the inner wall of the second elliptical tube 52, a first clamping sleeve 54 and a second clamping sleeve 55 are fixedly connected to the bottom ends of the first elliptical tube 51 and the second elliptical tube 52 respectively, and when in use, falling-off phenomenon can not occur in the telescopic process of the second elliptical tube 52 and the third elliptical tube 53 through the arrangement of the first clamping sleeve 54 and the second clamping sleeve 55.

Referring to fig. 3 and 4, the lifting rod 6 includes an adjusting component 61 fixedly installed at the bottom of the plastic base 3, an inner screw rod 62 is provided at the bottom of the adjusting component 61, a first clamping piece 63 is connected to the outer periphery of the inner screw rod 62 in a threaded manner, a moving sleeve 64 is fixedly connected to the bottom of the first clamping piece 63, an outer screw rod 65 is provided inside the moving sleeve 64, the moving sleeve 64 is connected with the outer periphery of the outer screw rod 65 in a threaded manner through a second clamping piece 66, when the lifting rod is used, the inner screw rod 62 can be lifted in the rotating process through the arrangement of the first clamping piece 63, meanwhile, the moving sleeve 64 is driven to rotate and move upwards along the outer screw rod 65 after the inner screw rod 62 is lifted by a certain height, and meanwhile, the moving sleeve 64 can be rotated and lifted along the outer screw rod 65 by the aid of the second clamping piece 66.

Referring to fig. 4, the adjusting component 61 includes a protection housing 611 fixedly mounted on the top of the plastic base 3, a transverse bevel gear 612 and a vertical bevel gear 613 are disposed in the protection housing 611, the transverse bevel gear 612 is engaged with the vertical bevel gear 613 and is located above the vertical bevel gear 613, and when in use, the rotation lifting of the inner screw 62 can be realized through the cooperation of the transverse bevel gear 612 and the vertical bevel gear 613, so that the lifting of the tablet chair can be realized, the operation is simplified, and the use convenience is improved.

Referring to fig. 3, two sides of the two transverse bevel gears 612, which are close to each other, are respectively connected with two ends of the connecting shaft 7 in a transmission manner, one of the transverse bevel gears 612 is connected with one end of the crank 8 in a clamping manner, the bottom of the vertical bevel gear 613 is fixedly connected with the top end of the inner screw rod 62, and when in use, through the arrangement of the crank 8, the transverse bevel gears 612 can be conveniently rotated so as to realize lifting of the tablet chair.

Referring to fig. 2, a reinforcing rod 9 is fixedly connected between the two first oval tubes 51, and when in use, the overall stability of the tablet chair can be improved through the arrangement of the reinforcing rod 9.

When in use: when the tablet chair needs to be lifted, the crank 8 is inserted into one of the transverse bevel gears 612 and rotated, the inner screw rod 62 can be rotated and moved upwards under the cooperation of the vertical bevel gears 613, and the outer peripheral threads of the inner screw rod 62 are larger than those of the outer screw rod 65, so that the inner screw rod 62 can be rotated and lifted along with the outer peripheral threads of the outer screw rod 65 in the lifting process, the first lifting of the tablet chair is realized, the clamping and fixing can be carried out by utilizing the clamping groove at the bottom of the first clamping piece 6 and the bottom end of the inner screw rod 62 after the inner screw rod 62 is rotated to a certain height, the movable sleeve 64 can be continuously rotated and lifted, the second lifting of the tablet chair is realized, the three-section lifting of the tablet chair can be realized, the lifting height range of the tablet chair and the applicability of students can be greatly improved, meanwhile, the inner screw rod 62 and the movable sleeve 64 can be rotated and driven to lift by utilizing the crank 8 under the cooperation of the vertical bevel gears 613, the lifting operation is simple and convenient, and the lifting operation is greatly improved for the students can lift and lift the tablet chair.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (7)

1. Novel three sections liftable tablet chairs, including mounting bracket (1), its characterized in that: the novel lifting seat comprises a mounting frame (1), wherein a plastic chair back (2) is fixedly connected to the top of the mounting frame (1), a plastic base (3) is fixedly connected to the bottom of the mounting frame (1), two supporting feet (4) are arranged below the plastic base (3), three telescopic pipes (5) are fixedly connected between the top of each supporting foot (4) and the bottom of the plastic base (3), lifting rods (6) are arranged inside the three telescopic pipes (5), connecting shafts (7) are connected between the lifting rods (6) in a transmission mode, and one side of each lifting rod (6) is provided with a crank (8).

2. The novel three-section liftable tablet chair of claim 1, wherein: the supporting legs (4) comprise supporting seats (41), and leveling feet (42) are fixedly connected to two ends of each supporting seat (41).

3. The novel three-section liftable tablet chair of claim 2, wherein: the three-section telescopic tube (5) comprises a first elliptical tube (51) fixed at the top of the supporting seat (41), a second elliptical tube (52) is slidably connected to the inner wall of the first elliptical tube (51), a third elliptical tube (53) is slidably connected to the inner wall of the second elliptical tube (52), and a first clamping sleeve (54) and a second clamping sleeve (55) are fixedly connected to the bottom ends of the first elliptical tube (51) and the second elliptical tube (52) respectively.

4. The novel three-section liftable tablet chair of claim 1, wherein: lifting rod (6) are including fixed mounting in adjusting part (61) of plastics base (3) bottom, the bottom of adjusting part (61) is provided with interior lead screw (62), the periphery threaded connection of interior lead screw (62) has first fastener (63), first fastener (63) bottom fixedly connected with removes sleeve pipe (64), remove sleeve pipe (64) inside outer lead screw (65) that is provided with, remove sleeve pipe (64) through second fastener (66) and outer lead screw (65) periphery threaded connection.

5. The novel three-section liftable tablet chair of claim 4, wherein: the adjusting component (61) comprises a protective outer cover (611) fixedly mounted on the top of the plastic base (3), a transverse conical gear (612) and a vertical conical gear (613) are arranged in the protective outer cover (611), and the transverse conical gear (612) is connected with the vertical conical gear (613) in a meshed mode and located above the vertical conical gear (613).

6. The novel three-section liftable tablet chair of claim 5, wherein: one side of each transverse conical gear (612) which is close to each other is in transmission connection with two ends of the connecting shaft (7), one transverse conical gear (612) is in clamping connection with one end of the crank (8), and the bottom of the vertical conical gear (613) is fixedly connected with the top end of the inner screw rod (62).

7. A novel three-section liftable tablet chair according to claim 3, wherein: a reinforcing rod (9) is fixedly connected between the two first elliptical pipes (51).

Images